Thread catching and severing device for embroidery-machines.



A. KELLER.

THREAD GATGHING AND SEVERING DEVIGE FOR EMBROIDERY MACHINES.

APPLICATION FILED JUNE 26, 1912.

Patented Dec; 9, 1913.

2 SHEETS-SHEET 1.

IIVVENTOR Keller WITNESSES in ion COLUMBIA PLANQGRAPH CO-,WASHINGTON..D c.

A. KELLER.

THREAD GATGHING AND SEVERING DEVICE FOR. EMBROIDERY MAGHINES. APPLICATION FILED JUNE 26, 1912.

2 SHEETS-SHEET 2.

Anionffeller COLUMBIA PLANOGRAPH C0.,WASHINOTON. D. c.

Patented Dec. 9, 1913.

UNliTiil STAE ATENT ANTON KELLER, OF NEW YORK, N. Y., ASSKGNOB TO IMPROVED SCEIFFLI MACHINE COMPANY, OF NEW YORK, N. 51., A CORPORATIQN OF NEW YORK.

THREAD CATCHING AND SEVERING DEVICE FOR EMBROIDERY-MACHINES.

Original application filed February 16, 1912, Serial No. 677,895.

Specification of Letters Patent.

Patented Dec. 3 i213.

Divided and this application filed June 26,

1912. Serial No. 765,914.

To all whom it may concern Be it known that 1, ANTON KELLER, a subject of the Emperor of Austria-Hungary, residing at New York, borough of the Bronx, in the county of New York and State of New York, have invented certain new and useful Improvements in Thread Catching and Severing Devices for Embroidery-Machines, of which the following is a specification.

This invention relates to improvements in shuttle embroidery machines, and has for its object the provision of improved mechanism for facilitating the embroidering of the work in an efiective and comparatively simple manner, it more particularly relating to the means for catching and deflecting the threads of all of the needles simultaneously and for cutting off all of the same simultaneously, the present application being a division of my contemporaneously pending application Serial No. 677,895, filed February 16, 1912.

Shuttle embroidery machines are frequently about ten yards long and have a series of reciprocating borers equally spaced apart throughout the entire length of the machine and a series of reciprocating needles also equally spaced apart throughout the entire length of the machine, and the borers are located in sections carried by bars. It is desirable to cut off all of the threads throughout the entire length of the machine at one and the same time when the work is finished, and to facilitate this it is necessary to provide means for catching all of the threads so that they will be carried away from the work, thereby preventing injury to the embroidery by the knife.

In the drawings accompanying and form ing part of this specification, Figure 1 is a cross-sectional view of an embroidery machine having this improved mechanism therein; Fig. 2 is what may be considered a front end view of the embroidery mechanism, taken on line 2-2, Fig. 1; and Figs. 3 and i are front views of the thread catching and cutting mechanism, Fig. 3 illustrating the thread as it is caught between the embroidery and needle and deflected while Fig. 4 illustrates the knife in position to sever the thread, these two figures showing the relative motions imparted to these parts of the mechanism.

Similar characters of reference indicate corresponding parts throughout the figures of the drawings.

In the present embodiment the framework 2 of the machine may be of any suitable construction usual to machines of this class, as may also be the means 3 for supporting the work to be embroidered. This frame-work supports a needle-carrying bar 4 and a borer-carrying bar 5, the latter shown located below the needle-carrying bar and both of which are shiftable by the usual means provided for this purpose.

Each of the needles 6 and borers 7 is secured in a suitable carrier 8, and those carrying the needles and those carrying the borers are substantially similar to each other.

The thread cut-ting means includes a series of thread catchers i3, one for each needle, comprising hooks secured to a shiftable operating bar 44, which bar extends throughout the entire length of the machine and is pivotally secured at intervals tothe upper ends of swinging or rocking cams or segments which are pivotally secured at their apeXes to a suitable supporting member 46 on the frame-work of the machine. Upon pulling this operating bar lengthwise the catchers will be raised and swung, as shown for instance in Fig. 4, to the right, each thereupon catching a needle thread and pulling it away from the needle, this of course taking place after the embroidery work is finished and the needles are retracted.

Pivotally secured to the sectors 45 at points below the thread catcher operating bar and therefore adjacent to the lower end of the rocking sectors is a knife holder '17 shown in the present instance as comprising a bent plate having parallel side walls L8 and 49, one of which, as the outer one 49, extends somewhat above the other and is provided with a series of projections or teeth 50 forming a guard to prevent the knife cutting the embroidery upon the goods, which, as is well known, projects beyond the face of the goods being embroidered. This knife holder extends throughout the entire length of the machine and carries the knives 51, which are preferably disposed therein in sections in order to facilitate the removal and sharpening thereof. The movement of the thread catchers and knives is clearly shown by the arrows in Figs. 3 and L. The rocking devices of this thread catching and cutting mechanism are so located with relation to their supporting means that the thread catchers and knives project in an inclined direction toward the work, as shown very clearly in Fig. 2, so that the thread catchers and knives in their inoperative positions will be out of the way, while at the same time when thrown into operation will be brought into position to catch the thread between the ends of the needles and the work when the needles are shifted away from the work and will sever such threads close to the work without, however, any liability to injure the same.

From the foregoing it will be seen that both the needle thread catchers and knives have the same movement, being first raised and then drawn lengthwise in the same direction, the catchers moving in advance of the knives and catching the loop and carrying it away from the needles and the work, whereupon the knives move upward beyond: the catchers and engage the threads to sever the same. Thus, it will be seen that by the same operating bar the thread catchers are all simultaneously operated throughout the entire length of the machine and the threads are all simultaneously severed throughout the entire length of the machine by one andthe same operation.

In the present improvement the catchers are first moved upward and into position to catch the threads and then downward to pull the threads away from the work, such movement being in a curved path, while the severing means, which, as hereinbefore stated, comprises a series of knives merely to facilitate the sharpening thereof located end to end and extending lengthwise of the machine throughout substantially the length thereof and therefore comprise practically a single severing device, also moves in a; curved path, such movements in the present instance being shown in the arcs of a circle.

I claim as my invention:

1. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, a series of inde-. pendent, shiftable hook-shaped thread catchers for catching the threads of all of; the needles simultaneously and pulling them away from the embroidery work while the latter remains stationary, and severing means for simultaneously cutting all of said threads, and means for supporting said thread catchers and severing means for in dependent operation on the threads.

2. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles shiftable in a; horizontal plane, a series of independent, shiftable hook-shaped thread catchers for catching the threads of all of the needles simultaneously and pulling them away from the embroidery work while the latter remains stationary, severing means for simultaneously cutting all of said threads, and a shiftable member carrying said catchers and thread-cutting means whereby said catchers and severing means are thrown into operation on the shifting of said member and in a plane transverse to the plane of movement of the needles.

3. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, a series of independent shiftable hook-shaped thread catchers for catching the threads of all of the needles simultaneously and pulling them away from the embroidery work while the latter remains stationary, severing means for simultaneously cutting all of such threads, and a shiftable member carrying said catchers and thread cutting means whereby said catchers and severing means are thrown into operation on the shifting of said member, with the catchers operating on the needle threads in advance of the severing means operating on such threads,

4-. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, thread catching and severing mechanism for simultaneously catching all of the threads of the needles and simultaneously severing the same and comprising a supporting member, a series of swinging members pivotal-1y secured thereto, a bar pivotally connected with said swinging members and carrying the thread catchers, one for each needle, and severing means also carried by said swinging members.

5. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, thread catching and severing mechanism for simultaneously catching all of the threads of the needles and simultaneously severing the same and comprising a supporting member, a series vof swinging members pivotally secured thereto, a bar pivotally connected with said swinging members and carrying the thread catchers, one for each needle, and severing means also carried by said swinging members, said severing means being located below the thread catchers whereby the thread catchers will operate on the needle threads in advance of the severing means operating on such threads. 7

6. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, thread catching and severing mechanismfor simultaneously catching all of the threads of the needles and simultaneously severing the same and comprising a, supporting member, a series of swinging members pivotally secured thereto, a bar pivotally connected with said swinging members and carrying the thread catchers, one for each needle, and severing means also carried by said swinging members, said severing means being located below the thread catchers whereby the thread catchers will operate in advance of the severing means and said swinging members be ing so supported that the catchers and severing means will have an inclined position toward the ends of the needles.

7 In a shuttle embroidery machine, the

combination of a reciprocating needle bar carrying a series of needles, thread catching and severing mechanism comprising a supporting member, a plurality of swinging segments pivotally secured to said supporting member, a shiftable bar pivotally carried by said segments, a series of catchers carried by said bar, one for each needle, knife supporting means pivotally secured to said segments below said shiftable bar, the organization being such that on the shifting of said bar the catchers and severing means will have an upward and forward movement whereby the catchers will first catch the needle threads and subsequently the same be severed. v

8. In a shuttle embroidery machine, the combination of a series of needles, a series of independent hook-shaped thread catchers for catching the threads of all the needles simultaneously, and means for shifting said hooks in a curved path in the direction of the plane of the work to. pull the threads down into position to be severed and away from the work.

9. In a shuttle embroidery machine, the combination of a series of needles, hookshaped means for catching the threads 01. a plurality of needles simultaneously and carrying them into position to be severed, and means for shifting all of hook shaped means at the same time in the arc of'a circle and in the direction of the plane of the work to catch and carry the threads away from the work.

10. In a shuttle embroidery machine, the combination of a series of needles, a series of independent hook-shaped thread catchers one for each needle for catching the threads of all the needles simultaneously, means extending lengthwise of the machine for supporting all of said hooks, and means for raising and lowering the hooks and during such movement for shifting them laterally in the direction of the plane of the work.

11. In a shuttle embroidery machine, the combination of a series of needles, a single shiftable severing means located at an angle to the work and having a cutting edge extending throughout the length of said severing means for simultaneously cuttingv all or" the threads of said needles, and means for shifting it in a curved path.

12. In a shuttle embroidery machine, the combination of a series of needles,ashiftable severing means supported at an angle to the work for simultaneously cutting all of the threads of said needles, and means for raising and lowering the severing means and simultaneously with such movement shifting it transversely to the direction of travel of its raising and lowering movement.

13. In a shuttle embroidery machine, the combination of a series of needles, and thread catching and severing mechanism for simultaneously catching all of the threads of the needles and simultaneously severing the same, said thread catching and severing means having an inclined position toward the ends of the needles.

14. In a shuttle embroidery machine, the combination of a series of needles, thread catching and severing mechanism for simultaneously catching all of the threads of the needles and simultaneously severing the same, said thread catching and severing means having an inclined position toward the ends of the needles, and means for operating said catching and severing means so that they will engage the needle threads in sequence.

15. In a shuttle embroidery machine, the combination of a series of needles and thread catching and severing mechanism for simultaneously catching all of the threads or the needles and simultaneously severing the same and comprising a series of thread catchers and knives located below the needles and having an inclined position toward the ends thereof, and means for operating said catchers and knives, the for mer operating on the needle threads in advance of the latter operating thereon.

16. In a shuttle embroidery machine, the combination of a series of needles, and shiftable severing means for simultaneously cutting the threads of all of said needles and comprising knife supporting means, sectional knives carried thereby and located end to end and each having a cutting edge extending throughout substantially its length, and means for oscillating said supporting means in a curved path.

17 In a shuttle embroidery machine, the combination of a series of needles, a knife running lengthwise of the machine for severing a plurality of the threads of such needles simultaneously and supported in a position inclined to the embroidery work, and means for oscillating such severing means in a plane inclined to the embroidery work to sever the threads.

18. In a shuttle embroidery machine, the combination of a series of needles, a series of independent hook-shaped thread catchers for catching the threads of all the needles simultaneously and pulling them away from the work, severing means for simultaneously cutting all of said threads, and means for oscillating said hooks and severing means in curved paths each independently of the other.

19. In a shuttle embroidery machine, the combination of a series of needles, hookshaped means for catching a plurality of threads and carrying them simultaneously into position to be severed, and means for simultaneously severing such threads, sai d thread catching and severing means operating on the needle threads one in advance of the other operating thereon.

20. In a shuttle embroidery machine, the combination of a series of needles, means for catching a plurality of threads and carrying them simultaneously into position to be severed, and means for simultaneously severing such threads, said thread catching and severing means operating on the needle threads one in advance of the other operating thereon and each operating in a plane inclined to the plane of movement of the needles.

21. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, a series of independent, shiftable hook-shaped thread catchers for catching the threads of all the needles simultaneously and pulling them away from the work, severing means for simultaneously cutting all of such threads, and a forked guard for protecting such severing means.

22. In a shuttle embroidery machine, the combination of a reciprocating needle bar having a series of needles, a series of independent, shiftable hook-shaped thread catchers for catching the threads of all the needles simultaneously and pulling them away from the work, severing means for simultaneously cutting all of such threads, a guard for protecting such severing means, said severing means being located below the thread catchers, and means for shifting said catchers and said severing means whereby the catchers will operate on the threads in,

advance of the severing means.

23. In a shuttle en'ibroidery machine, the combination of a series of needles, a series of independent hook-shaped thread catchers for catching the threads of all the needles simultaneously, and severing means for simultaneously cutting all of said threads and comprising a shiftable knife supporting means, a series of lengthwise extending knives located end to end and carried by said knife supporting means and means for supporting them below the threads and for shifting them upward to sever the same.

24;. In a shuttle embroidery machine, the combination of a series of needles, hookshaped means for catching a plurality of threads, means for oscillating such hook shaped means to catch and carry the threads simultaneously into position to be severed, long knives for simultaneously severing such threads, and means for oscillating said knives transversely to the direction of their length.

25. In a shuttle embroidery machine, the combination of a' series of needles, a series of independent hook-shaped thread catchers one for each needle for catching the threads of all the needles simultaneously, means eX- tending lengthwise of the machine for supporting all of said hooks, means for raising and lowering the hooks and during such movement for shifting them laterally, shiftable severing means for simultaneously cutting all of the threads of said needles, and means for raising and lowering the severing means and simultaneously with such movement shifting it transversely to the direction of travel of its raising and lowering movement.

26. In a shuttle embroidery machine, the combination of a series of needles, a series of independent hook-shaped thread catchers one for each needle for catching the threads of all the needles simultaneously, means eX- tending lengthwise of the machine for supporting all of said hooks, means for raising and lowering the hooks and during such movement for shifting them laterally, shiftable severing means for simultaneously cutting all of the threads of said needles, and means for raising and lowering the severing means and simultaneously with such movement shifting it transversely to the direction of travel of its raising and lowering movement, said thread catchers and severing means being supported independently of each other and the thread catchers operating in advance of the severing means.

Signed at 1821 Park Row Building, New York, N. Y., this 21stday of June, 1912.

ANTON KELLER.

Witnesses F. E. Boron, J. B. MCGUIRE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. C. 

